Granulating-machine.



E. A. WALTERS.

GRANULATING MACHINE.

APPLICATION HLED SEPT. 14. ms.

Patented May1,1917.

m/fmm/v EDWARD A M/hLTE s,

A TTORNEVS EDWARD AMOS WALTERS, OF YOUNGSTOWN, OHIO.

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Specification of Letters Patent.

Patented May 1, 1916..

Application filed September 14, 1916. Serial No. 120,044.

To all whom it may concern:

Be it known that I, EDWARD AMos WAL- mns, a citizen of the United States, and a resident of Youngstown, in the county of Mahoning and State of Ohio, have invented an Im rovement in Granulating- Machines, of which the following is a specification.

My invention is an improvement in ranulating machines, and has for its 0b ect to provide a machine of the character specified, especially adapted for granulating open hearth and blast furnace slag as it comes direct from the ladle, and delivering it prepared and ready for use.

In the drawings:

Figure 1 is a vertical section through the improved machine.

Fig. 2 is a section on the line 2-2 of Fig. 1, looking in the direction of the arrow adjacent to the line.

In the present embodiment of the invention, a frusto-conical or tapering casing 1 is provided of suitable material, the said casing having'legs 2 secured thereto on the outer face of the casing, and the legs are rigidly connected at their lower ends to a suitable supporting base 3 for the machine. This baseis provided with a step bearing 4 at the axis of the casing, and a shaft '5 is journaled in the bearing at its lower end. This shaft has ke ed thereto adjacent to the step bearing a evel gear 6, and a drive shaft 7 is journaled in suitable bearings 8 on the base, the shaft having a' bevel gear 9 keyed thereto at its inner end and engaging the bevel gear 6 to rotate-the shaft.

A bowl-shaped member 10 is arranged at the upper end of the shaft, the said member being connected to the casing by radial arms 11, and in its lower end or bottom thebowlshaped member has a recess 12 for receiving the upper end ofthe shaft. The shaft is thus 'ournaled in the bowl-shaped member andt e step bearing, and within the bowlsha ed member is arranged a receiving and fee ing cup 13 for the slag, as it 1s delivered from the ladle. This cup 13 fits within the bowl-shaped member, and it will be noticed from an inspection of Fig. 1 that the cup has an annular shoulder 14 engaging the upper edge of the bowl-shaped member, The cup also has a lip 15 extending toward the peripheral surface of the bowl-shaped member for delivering the slag away from the periphery of the bowl-shaped member, as the slag fiows from the cu A frusto-conieal or tapering deflecting wheel 16 is keyed onto the shaft just below the oup-shaped member, being arranged with the small end upward, and a second tapering or frusto-conical deflecting wheel 17 is arranged directly below the wheel 16, the wheel 17 bein journaled loosely on the shaft andbeing a so arranged with its small end upward. The wheel 16 has a marginal depending flange or petticoat 18, extending outside of the small end of the wheel 17, and the wheel 17 has a similar petticoat 19 at. its large end. These petticoats deflect the slag outwardly, and the petticoat 18 prevents the entrance of the slag between the wheels, and the said petticoat is spaced apart from the peripheral surface of the wheel 17.

The wheel 17 has an extended hub 20 at its lower or large end, and this hub has keyed thereto a bevel gear 21 which meshes with the bevel gear 9 above-mentioned. The bevel gear 21 is, however, .oppositely arran d to the bevel gear 6, so that when the sha t 7 rotates, the wheels 16 and 17 will be driven in opposite directions.

The wheels 16 and 17 have spiral ribs 22 and 23, respectively, on their peripheral surfaces, and the ribs of the wheel 17 are oppositely arranged to the ribs of the wheel 16, that is they incline in opposite directions. 4

The inner surface ofthe casing is provided with similar series of ribs 24 and 25, the ribs'24 .being arranged in the opposite manner to the ribs 25, and the ribs 24 are also arranged in the opposite manner to the ribs 22.

Spray rings 26 and 27 encircle the wheels at their upper ends, the said spray rings being connected by branches with a supply pipe 28 for supplying water to the rings. These rings, as shown more particularly in Fig. 1 are perforated, in order that they may spray water through the slag as it falls from the cup 13 onto the wheels. The ring 26 is at the lower end of the bowl-shaped member 10, while the ring 27 is just below the petticoat 18 of the wheel 16.

In operation, the slag from the ladle pours into the cup 13, and eventually overflows the cup, being deflected by the lip 15 down upon the tapering peripheral ribbed surface of the wheel 16. During its passage it is cooled by the air which circulates through the open end of the casing 1, said casing being open at the top and bottom, and the flowing slag is retarded .in its passage by the ribs 22 and 24. Eventually the slag will flow over the lower end of the wheel-16 onto the wheel 17, being again cooled by the spray of water as it leaves the wheel 16. Here the flow of the slag is retarded by the ribs, and it will finally pass off the lower end of thewheel 17 cooled and granulated and ready for use.

I claim:

1. A machine of the character specified, comprising a frusto-conical open ended casing arranged with the small end upward, a shaft journaled at the axis of the casing, a cup supported at the upper end of the shaft by the casing and having an outwardly extending marginal lip, a wheel secured to the shaft below the cup and having a frustoconical periphery arranged with its small end upward, a second wheel journaled on the shaft below the first wheel and having a frusto-conical periphery aranged similarly to the first-named wheel, said cup delivering onto the periphery of the uppermost wheel and the uppermost wheel having means at its lower end for deflecting the slag onto the periphery of the lowermost wheel, said wheel having spiral ribs and the ribs of the wheels being oppositely arranged, said casing having internal spiral ribs at each wheel and arranged in an opposite manner to those on the wheel, means for rotating the shaft and the lowermost wheel in opposite direc tions, and means at the top of each wheel for delivering a spray of water through the falling slag.

2. A machine of the character specified, comprising a pair of similarly arranged frusto-conical wheels, said wheels being arranged one below the other and with their small ends upward, means for rotating the wheels in opposite directions, a cup above the uppermost wheel and having an outwardly extending lip for delivering the slag onto the periphery of the uppermost wheel, means at the top of each wheel for delivering a spray of water through the falling slag, and an inclosing casing for the wheels, said wheels and easing having peripheral ribs for slowing the flow ofthe slag, the ribs of the wheels and asing being oppositelv arranged.

3. A machine of the character specified, comprising a pair of similarly arranged frustoconical wheels, said wheels being arranged one below the other and with their small ends upward, means for rotatingthe wheels in opposite directions, a cup above the uppermost wheel and having an outwardly extending lip for delivering the slag onto the pcriphery'of the uppermost wheel, means at the top of each wheel for delivering a spray of water through the falling slag, and an inclosing casing for the wheels, said wheels and easing having peripheral ribs for slowing the flow of the slag.

4. A machine of the character specified, comprisin a pair of similarly arranged frusto-conlcal wheels, said wheels being arranged one below the other and with their small ends upward, means for rotating the Wheels in opposite directions, a cup above the uppermost wheel and having an outwardly extending lip for delivering the slag onto the periphery of the uppermost wheel, means at the top of each wheel for delivering a spray of water through the falling slag, and an inclosing casing for the wheels.

5. A machine of the character specified, comprising a pair of similarly arranged frusto-conical wheels, said wheels being arranged one bclow the other and with their small ends upward, means for rotating the wheels in opposite directions, means for delivering the slag to the topmost wheel, means at the top of each wheel for delivering a spray of water through the falling slag, and an inclosing casing for the wheels.

6. A machine of the character specified, comprising frusto-conical wheels arranged one above the other and with their small ends upward, means for rotating the wheels in opposite directions, means for delivering slag to the wheels.

7. A machine of the character specified, comprising a pair of similarly arranged frusto-conical wheels, said wheels being arranged one below the other and with their small ends upward, means for rotating the wheels in opposite directions, means for delivering the slag to the topmost wheel, and an inclosing casing for the wheels.

8. A machine of the character specified, comprising coaxial superposed wheels having inclined peripheries for receiving the slag and means for rotating the wheels in opposite directions. I

9. A machine of the character specified, comprising coaxial superposed wheels having inclined peripheries for receiving the slag and provided with means on their peripheries for slowing the downward movement of the slag, means for rotating said wheels in opposite directions, and means for spraying water through the falling slag.

10. A machine of the character specified, comprising a frusto-conical wheel arranged with the-small end upward, a receiving cup for the slag mounted on the small end of the wheel and delivering to the periphery-thereof, and an inclosing casing for the Wheels, said Wheel and easing having means for slowing the travel of the slag.

11. A machine of the character specified, comprising a frusto conical wheel arranged with the small end upward, a receiving cup for the slag mounted on the small end of the Wheel and delivering to the periphery thereof, said cup having an outwardly and 1} downwardly turned lip for the purpose specified.

I EDWARD AMOS WALTERS.

Witnessed by HENRY GREENWALD, MARTHA B. MOCARTNEY. 

